Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
index 3ce9337..39eec90 100644
--- a/drivers/misc/cxl/Kconfig
+++ b/drivers/misc/cxl/Kconfig
@@ -1,19 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# IBM Coherent Accelerator (CXL) compatible devices
#
config CXL_BASE
bool
- default n
select PPC_COPRO_BASE
config CXL_AFU_DRIVER_OPS
bool
- default n
config CXL_LIB
bool
- default n
config CXL
tristate "Support for IBM Coherent Accelerators (CXL)"
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 750470e..b493de9 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/pci.h>
@@ -13,6 +9,7 @@
#include <misc/cxl.h>
#include <linux/module.h>
#include <linux/mount.h>
+#include <linux/pseudo_fs.h>
#include <linux/sched/mm.h>
#include <linux/mmu_context.h>
@@ -37,21 +34,15 @@
static int cxl_fs_cnt;
static struct vfsmount *cxl_vfs_mount;
-static const struct dentry_operations cxl_fs_dops = {
- .d_dname = simple_dname,
-};
-
-static struct dentry *cxl_fs_mount(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *data)
+static int cxl_fs_init_fs_context(struct fs_context *fc)
{
- return mount_pseudo(fs_type, "cxl:", NULL, &cxl_fs_dops,
- CXL_PSEUDO_FS_MAGIC);
+ return init_pseudo(fc, CXL_PSEUDO_FS_MAGIC) ? 0 : -ENOMEM;
}
static struct file_system_type cxl_fs_type = {
.name = "cxl",
.owner = THIS_MODULE,
- .mount = cxl_fs_mount,
+ .init_fs_context = cxl_fs_init_fs_context,
.kill_sb = kill_anon_super,
};
diff --git a/drivers/misc/cxl/base.c b/drivers/misc/cxl/base.c
index 7557835..cc0caf9 100644
--- a/drivers/misc/cxl/base.c
+++ b/drivers/misc/cxl/base.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index 5fe529b..aed9c44 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index d1d927c..5dc0f60 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -1,10 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#ifndef _CXL_H_
@@ -912,11 +908,11 @@
#ifdef CONFIG_DEBUG_FS
-int cxl_debugfs_init(void);
+void cxl_debugfs_init(void);
void cxl_debugfs_exit(void);
-int cxl_debugfs_adapter_add(struct cxl *adapter);
+void cxl_debugfs_adapter_add(struct cxl *adapter);
void cxl_debugfs_adapter_remove(struct cxl *adapter);
-int cxl_debugfs_afu_add(struct cxl_afu *afu);
+void cxl_debugfs_afu_add(struct cxl_afu *afu);
void cxl_debugfs_afu_remove(struct cxl_afu *afu);
void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir);
void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter, struct dentry *dir);
@@ -925,27 +921,24 @@
#else /* CONFIG_DEBUG_FS */
-static inline int __init cxl_debugfs_init(void)
+static inline void __init cxl_debugfs_init(void)
{
- return 0;
}
static inline void cxl_debugfs_exit(void)
{
}
-static inline int cxl_debugfs_adapter_add(struct cxl *adapter)
+static inline void cxl_debugfs_adapter_add(struct cxl *adapter)
{
- return 0;
}
static inline void cxl_debugfs_adapter_remove(struct cxl *adapter)
{
}
-static inline int cxl_debugfs_afu_add(struct cxl_afu *afu)
+static inline void cxl_debugfs_afu_add(struct cxl_afu *afu)
{
- return 0;
}
static inline void cxl_debugfs_afu_remove(struct cxl_afu *afu)
diff --git a/drivers/misc/cxl/cxllib.c b/drivers/misc/cxl/cxllib.c
index 5a3f912..258c43a 100644
--- a/drivers/misc/cxl/cxllib.c
+++ b/drivers/misc/cxl/cxllib.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2017 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/hugetlb.h>
diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c
index a1921d8..7b987bf 100644
--- a/drivers/misc/cxl/debugfs.c
+++ b/drivers/misc/cxl/debugfs.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/debugfs.h>
@@ -30,11 +26,11 @@
DEFINE_DEBUGFS_ATTRIBUTE(fops_io_x64, debugfs_io_u64_get, debugfs_io_u64_set,
"0x%016llx\n");
-static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode,
- struct dentry *parent, u64 __iomem *value)
+static void debugfs_create_io_x64(const char *name, umode_t mode,
+ struct dentry *parent, u64 __iomem *value)
{
- return debugfs_create_file_unsafe(name, mode, parent,
- (void __force *)value, &fops_io_x64);
+ debugfs_create_file_unsafe(name, mode, parent, (void __force *)value,
+ &fops_io_x64);
}
void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir)
@@ -58,25 +54,22 @@
debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_TRACE));
}
-int cxl_debugfs_adapter_add(struct cxl *adapter)
+void cxl_debugfs_adapter_add(struct cxl *adapter)
{
struct dentry *dir;
char buf[32];
if (!cxl_debugfs)
- return -ENODEV;
+ return;
snprintf(buf, 32, "card%i", adapter->adapter_num);
dir = debugfs_create_dir(buf, cxl_debugfs);
- if (IS_ERR(dir))
- return PTR_ERR(dir);
adapter->debugfs = dir;
debugfs_create_io_x64("err_ivte", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_ErrIVTE));
if (adapter->native->sl_ops->debugfs_add_adapter_regs)
adapter->native->sl_ops->debugfs_add_adapter_regs(adapter, dir);
- return 0;
}
void cxl_debugfs_adapter_remove(struct cxl *adapter)
@@ -100,18 +93,16 @@
debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SLICE_TRACE));
}
-int cxl_debugfs_afu_add(struct cxl_afu *afu)
+void cxl_debugfs_afu_add(struct cxl_afu *afu)
{
struct dentry *dir;
char buf[32];
if (!afu->adapter->debugfs)
- return -ENODEV;
+ return;
snprintf(buf, 32, "psl%i.%i", afu->adapter->adapter_num, afu->slice);
dir = debugfs_create_dir(buf, afu->adapter->debugfs);
- if (IS_ERR(dir))
- return PTR_ERR(dir);
afu->debugfs = dir;
debugfs_create_io_x64("sr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SR_An));
@@ -122,8 +113,6 @@
if (afu->adapter->native->sl_ops->debugfs_add_afu_regs)
afu->adapter->native->sl_ops->debugfs_add_afu_regs(afu, dir);
-
- return 0;
}
void cxl_debugfs_afu_remove(struct cxl_afu *afu)
@@ -131,19 +120,12 @@
debugfs_remove_recursive(afu->debugfs);
}
-int __init cxl_debugfs_init(void)
+void __init cxl_debugfs_init(void)
{
- struct dentry *ent;
-
if (!cpu_has_feature(CPU_FTR_HVMODE))
- return 0;
+ return;
- ent = debugfs_create_dir("cxl", NULL);
- if (IS_ERR(ent))
- return PTR_ERR(ent);
- cxl_debugfs = ent;
-
- return 0;
+ cxl_debugfs = debugfs_create_dir("cxl", NULL);
}
void cxl_debugfs_exit(void)
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index dc7b341..2297e6f 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/workqueue.h>
@@ -168,7 +164,7 @@
if (dsisr & CXL_PSL_DSISR_An_S)
access |= _PAGE_WRITE;
- if (!mm && (REGION_ID(dar) != USER_REGION_ID))
+ if (!mm && (get_region_id(dar) != USER_REGION_ID))
access |= _PAGE_PRIVILEGED;
if (dsisr & DSISR_NOHPTE)
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index bd6ddbd..bd3bd32 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/spinlock.h>
diff --git a/drivers/misc/cxl/flash.c b/drivers/misc/cxl/flash.c
index 4391789..4d6836f 100644
--- a/drivers/misc/cxl/flash.c
+++ b/drivers/misc/cxl/flash.c
@@ -92,8 +92,8 @@
val = (u32 *)new_prop->value;
rc = cxl_update_properties(dn, new_prop);
- pr_devel("%s: update property (%s, length: %i, value: %#x)\n",
- dn->name, name, vd, be32_to_cpu(*val));
+ pr_devel("%pOFn: update property (%s, length: %i, value: %#x)\n",
+ dn, name, vd, be32_to_cpu(*val));
if (rc) {
kfree(new_prop->name);
diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index 3bc0c15..186308f 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/spinlock.h>
@@ -267,6 +263,7 @@
int i, rc;
pr_devel("Adapter reset request\n");
+ spin_lock(&adapter->afu_list_lock);
for (i = 0; i < adapter->slices; i++) {
if ((afu = adapter->afu[i])) {
pci_error_handlers(afu, CXL_ERROR_DETECTED_EVENT,
@@ -283,6 +280,7 @@
pci_error_handlers(afu, CXL_RESUME_EVENT, 0);
}
}
+ spin_unlock(&adapter->afu_list_lock);
return rc;
}
@@ -1018,8 +1016,6 @@
void cxl_guest_remove_afu(struct cxl_afu *afu)
{
- pr_devel("in %s - AFU(%d)\n", __func__, afu->slice);
-
if (!afu)
return;
diff --git a/drivers/misc/cxl/hcalls.c b/drivers/misc/cxl/hcalls.c
index 9b8bb0f..b7c57f6 100644
--- a/drivers/misc/cxl/hcalls.c
+++ b/drivers/misc/cxl/hcalls.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
diff --git a/drivers/misc/cxl/hcalls.h b/drivers/misc/cxl/hcalls.h
index 3e25522..d200465 100644
--- a/drivers/misc/cxl/hcalls.h
+++ b/drivers/misc/cxl/hcalls.h
@@ -1,10 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright 2015 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#ifndef _HCALLS_H
diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index ce08a9f..4cb829d 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/interrupt.h>
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c
index f35406b..43b312d 100644
--- a/drivers/misc/cxl/main.c
+++ b/drivers/misc/cxl/main.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/spinlock.h>
@@ -22,6 +18,7 @@
#include <linux/sched/task.h>
#include <asm/cputable.h>
+#include <asm/mmu.h>
#include <misc/cxl-base.h>
#include "cxl.h"
@@ -319,6 +316,9 @@
{
int rc = 0;
+ if (!tlbie_capable)
+ return -EINVAL;
+
if ((rc = cxl_file_init()))
return rc;
diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c
index c9d5d82..1a7f228 100644
--- a/drivers/misc/cxl/native.c
+++ b/drivers/misc/cxl/native.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/spinlock.h>
diff --git a/drivers/misc/cxl/of.c b/drivers/misc/cxl/of.c
index aff181c..1cfecba 100644
--- a/drivers/misc/cxl/of.c
+++ b/drivers/misc/cxl/of.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index b66d832..25a9dd9 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/pci_regs.h>
@@ -1718,7 +1714,6 @@
{
struct device_node *np;
int depth = 0;
- const __be32 *prop;
if (!(np = pci_device_to_OF_node(dev))) {
pr_err("cxl: np = NULL\n");
@@ -1727,8 +1722,7 @@
of_node_get(np);
while (np) {
np = of_get_next_parent(np);
- prop = of_get_property(np, "device_type", NULL);
- if (!prop || strcmp((char *)prop, "pciex"))
+ if (!of_node_is_type(np, "pciex"))
break;
depth++;
}
@@ -1807,7 +1801,7 @@
/* There should only be one entry, but go through the list
* anyway
*/
- if (afu->phb == NULL)
+ if (afu == NULL || afu->phb == NULL)
return result;
list_for_each_entry(afu_dev, &afu->phb->bus->devices, bus_list) {
@@ -1834,7 +1828,8 @@
{
struct cxl *adapter = pci_get_drvdata(pdev);
struct cxl_afu *afu;
- pci_ers_result_t result = PCI_ERS_RESULT_NEED_RESET, afu_result;
+ pci_ers_result_t result = PCI_ERS_RESULT_NEED_RESET;
+ pci_ers_result_t afu_result = PCI_ERS_RESULT_NEED_RESET;
int i;
/* At this point, we could still have an interrupt pending.
@@ -1845,6 +1840,7 @@
/* If we're permanently dead, give up. */
if (state == pci_channel_io_perm_failure) {
+ spin_lock(&adapter->afu_list_lock);
for (i = 0; i < adapter->slices; i++) {
afu = adapter->afu[i];
/*
@@ -1853,6 +1849,7 @@
*/
cxl_vphb_error_detected(afu, state);
}
+ spin_unlock(&adapter->afu_list_lock);
return PCI_ERS_RESULT_DISCONNECT;
}
@@ -1934,11 +1931,17 @@
* * In slot_reset, free the old resources and allocate new ones.
* * In resume, clear the flag to allow things to start.
*/
+
+ /* Make sure no one else changes the afu list */
+ spin_lock(&adapter->afu_list_lock);
+
for (i = 0; i < adapter->slices; i++) {
afu = adapter->afu[i];
- afu_result = cxl_vphb_error_detected(afu, state);
+ if (afu == NULL)
+ continue;
+ afu_result = cxl_vphb_error_detected(afu, state);
cxl_context_detach_all(afu);
cxl_ops->afu_deactivate_mode(afu, afu->current_mode);
pci_deconfigure_afu(afu);
@@ -1950,6 +1953,7 @@
(result == PCI_ERS_RESULT_NEED_RESET))
result = PCI_ERS_RESULT_NONE;
}
+ spin_unlock(&adapter->afu_list_lock);
/* should take the context lock here */
if (cxl_adapter_context_lock(adapter) != 0)
@@ -1982,14 +1986,18 @@
*/
cxl_adapter_context_unlock(adapter);
+ spin_lock(&adapter->afu_list_lock);
for (i = 0; i < adapter->slices; i++) {
afu = adapter->afu[i];
+ if (afu == NULL)
+ continue;
+
if (pci_configure_afu(afu, adapter, pdev))
- goto err;
+ goto err_unlock;
if (cxl_afu_select_best_mode(afu))
- goto err;
+ goto err_unlock;
if (afu->phb == NULL)
continue;
@@ -2001,16 +2009,16 @@
ctx = cxl_get_context(afu_dev);
if (ctx && cxl_release_context(ctx))
- goto err;
+ goto err_unlock;
ctx = cxl_dev_context_init(afu_dev);
if (IS_ERR(ctx))
- goto err;
+ goto err_unlock;
afu_dev->dev.archdata.cxl_ctx = ctx;
if (cxl_ops->afu_check_and_enable(afu))
- goto err;
+ goto err_unlock;
afu_dev->error_state = pci_channel_io_normal;
@@ -2031,8 +2039,13 @@
result = PCI_ERS_RESULT_DISCONNECT;
}
}
+
+ spin_unlock(&adapter->afu_list_lock);
return result;
+err_unlock:
+ spin_unlock(&adapter->afu_list_lock);
+
err:
/* All the bits that happen in both error_detected and cxl_remove
* should be idempotent, so we don't need to worry about leaving a mix
@@ -2053,10 +2066,11 @@
* This is not the place to be checking if everything came back up
* properly, because there's no return value: do that in slot_reset.
*/
+ spin_lock(&adapter->afu_list_lock);
for (i = 0; i < adapter->slices; i++) {
afu = adapter->afu[i];
- if (afu->phb == NULL)
+ if (afu == NULL || afu->phb == NULL)
continue;
list_for_each_entry(afu_dev, &afu->phb->bus->devices, bus_list) {
@@ -2065,6 +2079,7 @@
afu_dev->driver->err_handler->resume(afu_dev);
}
}
+ spin_unlock(&adapter->afu_list_lock);
}
static const struct pci_error_handlers cxl_err_handler = {
diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c
index 629e2e1..f0263d1 100644
--- a/drivers/misc/cxl/sysfs.c
+++ b/drivers/misc/cxl/sysfs.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
diff --git a/drivers/misc/cxl/trace.c b/drivers/misc/cxl/trace.c
index c2b06d3..86f654b 100644
--- a/drivers/misc/cxl/trace.c
+++ b/drivers/misc/cxl/trace.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#ifndef __CHECKER__
diff --git a/drivers/misc/cxl/trace.h b/drivers/misc/cxl/trace.h
index b8e300a..c474157 100644
--- a/drivers/misc/cxl/trace.h
+++ b/drivers/misc/cxl/trace.h
@@ -1,10 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright 2015 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#undef TRACE_SYSTEM
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 7908633..1cf320e 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -1,27 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2014 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/pci.h>
#include <misc/cxl.h>
#include "cxl.h"
-static int cxl_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
-{
- if (dma_mask < DMA_BIT_MASK(64)) {
- pr_info("%s only 64bit DMA supported on CXL", __func__);
- return -EIO;
- }
-
- *(pdev->dev.dma_mask) = dma_mask;
- return 0;
-}
-
static int cxl_pci_probe_mode(struct pci_bus *bus)
{
return PCI_PROBE_NORMAL;
@@ -54,8 +39,7 @@
return false;
}
- set_dma_ops(&dev->dev, &dma_nommu_ops);
- set_dma_offset(&dev->dev, PAGE_OFFSET);
+ dev->dev.archdata.dma_offset = PAGE_OFFSET;
/*
* Allocate a context to do cxl things too. If we eventually do real
@@ -220,7 +204,6 @@
.reset_secondary_bus = cxl_pci_reset_secondary_bus,
.setup_msi_irqs = cxl_setup_msi_irqs,
.teardown_msi_irqs = cxl_teardown_msi_irqs,
- .dma_set_mask = cxl_dma_set_mask,
};
int cxl_pci_vphb_add(struct cxl_afu *afu)